1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alex41 [277]
3 years ago
9

The doppler effect is when objects are not moving? True False

Physics
1 answer:
SVETLANKA909090 [29]3 years ago
6 0

Answer:

reviewing the statement we can say that it is FALSE

Explanation:

The Doppler effect is the change in the perceived frequency of a sound wave by the RELATIVE MOTION of the source and the observer.

This effect is very useful for finding the speed of an object.

When reviewing the statement we can say that it is FALSE

You might be interested in
An airplane flies with a constant speed of 560 miles per hour. How far can it travel in 1 1/2 hours?
Alik [6]
You would multiply the speed by the time. So the answer would be 840 miles.
5 0
3 years ago
Which words describe the composition of the inner planets ? Select three options,
IgorLugansk [536]

Answer:a b c

Explanation: I’m not sure tho

7 0
3 years ago
Read 2 more answers
Compare and contrast the inner and outer planets. (Must be in complete sentences) (At least 5 sentences).
Karolina [17]

To contrast inner and outer planets we will start with the climate of the planets and then move on to there lighting. To start the planets closet to the sun, mercury, venus, earth and mars, are all hot compared to the further one, jupiter, saturn, uranus, neptune. This distance also makes the farthe away planets darker than the ones closer. Now to compare all the planets vary from either gass or solid, rocky or icy. All of them spin around the sun and all have objects spinning around them, moons.

8 0
3 years ago
A driver sets out on a journey. for the first half of the distance she drives at the leisurely pace of 30 mi/h; during the secon
Gemiola [76]
The average speed of a moving object is the rate of change of a certain distance with respect with time. It is equal to the total distance that was traveled by the object over the total time it takes to travel that distance. For this problem we need to assume that the total distance that was traveled would be equal to 120 miles. So, for the first half of the distance or 60 miles at a speed of 30 miles per hour, the time taken would be two hours. For the remaining 60 miles at a speed of 60 miles per hour, 1 hour is total time traveled. So, we calculate the average speed as follows:

Average speed = total distance / total time
Average speed = 120 miles / 2 hr + 1 hr
Average speed = 40 mi / hr
5 0
3 years ago
While pushing a refrigerator up a ramp, there would be less friction to overcome if you used a dolly because of the wheels. So t
FromTheMoon [43]

While pushing a refrigerator up a ramp, there would be less friction to overcome if you used a dolly because of the wheels. So the efficiency of the ramp would be greater with the use of the dolly.

<u>Explanation:</u>

The ramp provides for a wedge setup, so when the refrigerator is being pushed up the ramp, the friction on the ramp would equally distributed to the refrigerator when pushed wholly as the friction applied is a product of the coefficient of friction with the Normal reaction of the weight in contact with the surface.

Therefore, when the dolly is used, the surface in contact becomes divided and thus, the friction applied would become less due to though coefficient of friction remains the same, the normal reaction of the weight becomes small and so does the applied friction. Therefore, efficiency of the ramp increases as the friction is less and work done is more.

4 0
3 years ago
Other questions:
  • Andy is waiting at the signal. As soon as the light turns green, he accelerates his car at a uniform rate of 8.00 meters/second2
    6·1 answer
  • An _____ contains in maximum number of hydrogen atoms possible
    10·1 answer
  • You pull a wagon with a force of 20 N. The wagon has a mass of 10 kg. What is the wagon's acceleration?
    11·1 answer
  • The Zero Gravity Research Facility at the NASA Glenn Research Center includes a
    6·1 answer
  • Ocean water conducts electrical current because it contains _____.
    13·2 answers
  • ??????????????????????????????
    13·1 answer
  • SOUND IS A FORM OF WAVE.LIST AT LEAST 3 REASONS TO SUPPORT IDEA THAT SOUND IS A WAVE.
    13·1 answer
  • Two circular coils are concentric and lie in the same plane. The inner coil contains 110 turns of wire, has a radius of 0.014 m,
    8·1 answer
  • If a base runner passes a forward runner who is not out, the passing runner is _________.
    5·1 answer
  • A 4.00 kg block is pushed along the ceiling with a constant applied force of 85.0 N that acts at an angle of 55.0 degrees with t
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!